Administrative rules are officially promulgated agency regulations that have the force and effect of law. Generally these rules elaborate the requirements of a law or policy. Each state has its own set of administrative rules which are passed by the state legislature.

For example, Oregon Administrative Rules Compilation (OAR) is the official compilation of rules and regulations having the force of law in the U.S. state of Oregon. It is the regulatory and administrative corollary to Oregon Revised Statutes, and is published pursuant to ORS § 183.360 (3). A rule is defined by the Oregon Revised Statutes as “any agency directive, standard, regulation or statement of general applicability that implements, interprets or prescribes law or policy, or describes the procedure or practice requirements of any agency”. [ORS § 183.310]